... PU foam part, foam for boat seats1.material-- soft PU with high elasticity2.technology--PU foaming3.hardness--shore 28A4.surface-- natural ... surface5,weight: 220-225 grams for small part, 1245g for large partit's ... , SBR, EPDM, IIR,NR, EP, SIL, FPM etc.2, Hardness: Between 30~90 shore A3,Property: high/low temperature resistance ...